Multi-user support: identity tracking for Mike + Howard

- .claude/identity.json (gitignored, per-machine) identifies who's at the keyboard
- .claude/users.json (tracked) registers known team members + roles + machines
- CLAUDE.md: on first sync, Claude asks "Mike or Howard?" and creates identity.json
- Session logs must include User section for attribution
- Git commits use per-user name/email (shared Gitea push account)
- Howard Enos (tech, full trust) added as second team member
- Memory entry created for Howard

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.claude/users.json

@@ -0,0 +1,28 @@
+{
+  "users": {
+    "mike": {
+      "full_name": "Mike Swanson",
+      "email": "mike@azcomputerguru.com",
+      "role": "admin",
+      "title": "President",
+      "known_machines": ["DESKTOP-0O8A1RL"],
+      "git_name": "Mike Swanson",
+      "git_email": "mike@azcomputerguru.com",
+      "notes": "Owner. Full access to everything."
+    },
+    "howard": {
+      "full_name": "Howard Enos",
+      "email": "howard@azcomputerguru.com",
+      "role": "tech",
+      "title": "Technician",
+      "known_machines": ["ACG-TECH03L"],
+      "git_name": "Howard Enos",
+      "git_email": "howard@azcomputerguru.com",
+      "notes": "Employee, Mike's brother. Full trust. Same access as Mike for MSP tracking and daily work."
+    }
+  },
+  "roles": {
+    "admin": "Full access to all systems, credentials, deployments, and infrastructure.",
+    "tech": "Full access to all systems, credentials, and client work. Same as admin for this organization."
+  }
+}